Polar Vortex 2025 Forecast Map. For the gefsv12 forecast issued on 18 december 2024, the winds at 60 degrees north (the mean location of the polar vortex) are forecast to remain stronger than normal for at. We mainly separate the polar vortex into two different modes:
In january it was stretched polar vortex (pv) events quickly followed by a snap back to a strong pv and then the whole cycle repeating itself. Signals are pointing toward a displaced polar vortex this winter, which typically contributes to a negative nao.
